2 years ago

(50 points + brainliest if found useful.)

Mathematics

2 answers:

Alexxandr [17]2 years ago

6 0

Answer:

Step-by-step explanation:

9x-4+5x+16=180

14x+12=180

14x=168

x=12

blagie [28]2 years ago

4 0

Answer:

C) 12

Step-by-step explanation:

Consecutive interior angles are supplementary:

(9x -4)° +(5x +16)° = 180°

14x = 168 . . . . . . divide by °, subtract 12

x = 12 . . . . . . . . divide by 14

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